{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1110-1AA32-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1110-1AA32-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1110-1AA32-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1110-1AA32-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1110-1AA32-0CH0, IEC frame 160, 3-pole switch disconnector rated 100 A continuous, with undervoltage release (UVR) 120-127V AC, 2 auxiliary switches + 1 trip alarm switch HQ, busbar connection.","salesMarkdown":"## Switch disconnector, not a breaker — know the difference The Siemens 3VA1110-1AA32-0CH0 is a SENTRON 3VA1 IEC frame 160 switch disconnector rated 100 A continuous (Iu) — it provides visible isolation and load-break capability but carries no overload or short-circuit protection. This is the key distinction from the MCCB variants in the same 3VA family: the product designation is \"Switch disconnector\" and the description explicitly states \"without overload protection w/o short-circuit protection.\" If your BOM calls for a disconnecting means upstream of a downstream protective device, this fits. If you need integrated overcurrent protection, you want the line-protection version (e.g., 3VA1110-5EE32-0DC0). Rated for 690 V AC (50/60 Hz) and 500 V DC maximum operational voltage, the 3-pole unit handles both AC and DC isolation duties. The 2 kA limited short-time rating (1 s and 0.5 s) confirms it can withstand fault current for coordination intervals — not interrupt a fault, but hold closed during a downstream breaker's clearing time. ## Undervoltage release and auxiliary contact complement The UVR has no leading contact, meaning it does not provide early break signaling to a downstream device. The HQ designation indicates high-rupturing-capacity contacts suitable for switching control transformer or PLC input loads directly. The trip alarm switch changes state only when the switch disconnector trips via the UVR or manual operation, giving a positive status signal for the safety circuit. ## Mounting and connection — busbar front-terminal design The main current circuit connects via busbar connection at the front terminals — this is a lug-style interface for bolted busbar or cable lugs, not a plug-in or rear-connect design. Dimensions are 70 mm deep × 76.2 mm wide × 130 mm high, matching the standard 3VA1 frame 160 footprint.","metaTitle":"Siemens 3VA1110-1AA32-0CH0 Switch Disconnector, 100 A, UVR","metaDescription":"Siemens SENTRON 3VA1110-1AA32-0CH0 switch disconnector, 100 A rated continuous current, 3-pole, undervoltage release 120-127V AC, busbar connection. Current lifecycle stage, availa","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","Limited To 1 S":"2 kA","Trip indicator":"Yes","Number of poles":"3","Product version":"in MCCB design","Voltage trigger":"No","lifecycle_stage":"current","Limited To 0.5 S":"2 kA","Product brand name":"SENTRON","Product designation":"Switch disconnector","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"38 W","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Rated continuous current Iu":"100 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Number of CO contacts / for auxiliary contacts":"3","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"busbar connection","Arrangement of electrical connectors / for main current circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=406891&mlfb=3VA1110-1AA32-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1110-1AA32-0CH0/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between this switch disconnector and the 3VA1110-5EE32-0DC0 MCCB?","answer":"The 3VA1110-1AA32-0CH0 is a switch disconnector with no overload or short-circuit protection — it provides visible isolation and load-break only. The 3VA1110-5EE32-0DC0 is a molded case circuit breaker with a TM220 thermal-magnetic release providing LI protection (overload and short-circuit). Both share the same 100 A frame, same 70×76.2×130 mm footprint, and same UVR option, so the 3VA1110-5EE32-0DC0 will drop into the same panel cutout and busbar arrangement if you need integrated protection. The switch disconnector is the correct choice when downstream protection is already provided by fuse"},{"question":"Where can I buy 3VA1110-1AA32-0CH0 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent industrial automation distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time for your quantity."},{"question":"What compliance documentation does Siemens provide for this switch disconnector?","answer":"As a SENTRON 3VA series product, it carries CE marking for the European market and is designed to IEC 60947-3 (switch-disconnector standard). The declaration of conformity and RoHS/REACH documentation are available from Siemens upon request. The IP40 front protection and 800 V rated insulation voltage (Ui) are specified on the nameplate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1110-1AA32-0CH0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VA1110-1AA32-0CH0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}